Year % GDP 1960 18.588625984998938 1961 18.21679567037685 1962 19.135616800428963 1963 18.383677736134043 1964 18.947143878067287 1965 19.0456369593788 1966 19.006118826205874 1967 20.301266437870055 1968 21.15874850589847 1969 22.797655447132602 1970 24.067749461842645 1971 24.731707395261758 1972 25.22060985516168 1973 23.389879651057075 1974 23.01705217811029 1975 25.89692217398852 1976 28.237471586596502 1977 21.94499563562107 1978 24.042097815846418 1979 23.98584593467216 1980 23.739880156253772 1981 24.108618988012754 1982 24.932186648318904 1983 25.006338986663188 1984 23.482173351008285 1985 20.47659791191279 1986 20.386327943391656 1987 20.694420136637568 1988 20.231775485669147 1989 72.06650123884909 1990 27.76379665978066 1991 27.120180875301 1992 39.57420604617022 1993 51.05024627651356 1994 39.50392124982244 1995 31.88036911365855 1996 29.814148875407195 1997 31.145394594312084 1998 26.492457591119358 1999 25.146361973336777 2000 24.203472745495 2001 21.971580515731766 2002 22.269326267289728 2003 21.646806135057297 2004 22.003895578277955 2005 23.858514905556934 2006 26.764994125995706 2007 30.530004010790872 2008 32.51321457170044 2009 34.2198582790304 2010 36.678754736648436 2011 40.39491538197846 2012 42.413992323848646 2013 44.031319435320256 2014 45.95033298084938 2015 45.18756790186141 2016 44.64673217423522 2017 44.51986658426614 2018 45.25819752863139 2019 46.96324701825768 2020 50.12773443018661 2021 47.202993818937244 2022 46.69134279174715 2023 46.70961424077088